The world’s best-selling external hard drive now features a new, smart, visual backup solution that protects your data automatically. Smaller, sleeker, more streamlined design - WD has made these award-winning drives even smaller, sleeker, and more elegant. As always, this book-like shape takes up less space on your desk and allows two or more My Book drives to nestle neatly together like volumes on a shelf. WD SmartWare - A control center for your drive that gives you the power to: Protect your data automatically - Relax. Your data is secure. Automatic, continuous backup will instantly make a second copy whenever you add or change a file. See your backup as it happens - Seeing is believing.